Saving shader effects to a model?

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Mugen Wizardry

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Posted: 28th Aug 2011 02:29

Hi all. How would I save shader effects to a model? I have a feeling this may be the only way to save the detail I need to my terrains

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Bluespark

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Posted: 28th Aug 2011 02:43

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Shaders effects are saved in fx files.
For the detail map, you will need to convert object fvf and set the appropiate uv coordinates. The simplest way to have a tiled detailmap afterwards is to scale the texture stage for the detail map and use blend mapping.

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Mugen Wizardry

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Posted: 28th Aug 2011 02:44 Edited at: 28th Aug 2011 02:46

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Ok, could you possibly show me a small example of how to do this as well as being able to save the object WITH the detail?

I would be GREATFUL

Thanks alot!

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Bluespark

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Posted: 28th Aug 2011 02:46

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A good example from the user Jane Doe:

set display mode 1024, 768, 32

sync on
sync rate 60

autocam off
color backdrop 0, 0

hide mouse
hide light 0
set ambient light 100

` Make a plain.
make object plain 1, 10.0, 10.0
position object 1, 0.0, 0.0, 10.0

convert object fvf 1, 514

lock vertexdata for limb 1, 0
     PositionU1# = 0.0
     PositionV1# = 0.0
     PositionU2# = 1.0
     PositionV2# = 1.0

set vertexdata uv 0, 0, PositionU2#, PositionV1#
     set vertexdata uv 1, 0, PositionU1#, PositionV1#
     set vertexdata uv 2, 0, PositionU2#, PositionV2#
     set vertexdata uv 3, 0, PositionU1#, PositionV1#
     set vertexdata uv 4, 0, PositionU1#, PositionV2#
     set vertexdata uv 5, 0, PositionU2#, PositionV2#

PositionU1# = 0.0
     PositionV1# = 0.0
     PositionU2# = 5.0
     PositionV2# = 5.0

set vertexdata uv 0, 1, PositionU2#, PositionV1#
     set vertexdata uv 1, 1, PositionU1#, PositionV1#
     set vertexdata uv 2, 1, PositionU2#, PositionV2#
     set vertexdata uv 3, 1, PositionU1#, PositionV1#
     set vertexdata uv 4, 1, PositionU1#, PositionV2#
     set vertexdata uv 5, 1, PositionU2#, PositionV2#
unlock vertexdata

` Load the textures.
load image "Sand.png",  1, 0
load image "LightMap.png", 2, 0

` Apply the textures using SET BLEND MAPPING ON.
set blend mapping on 1, 0, 1, 11, 26
set blend mapping on 1, 1, 2,  3,  4

` Program loop.
do
     sync
loop

end

+ Code Snippet

set display mode 1024, 768, 32

sync on
sync rate 60

autocam off
color backdrop 0, 0

hide mouse
hide light 0
set ambient light 100

` Make a plain.
make object plain 1, 10.0, 10.0
position object 1, 0.0, 0.0, 10.0

convert object fvf 1, 514

lock vertexdata for limb 1, 0
     PositionU1# = 0.0
     PositionV1# = 0.0
     PositionU2# = 1.0
     PositionV2# = 1.0

     set vertexdata uv 0, 0, PositionU2#, PositionV1#
     set vertexdata uv 1, 0, PositionU1#, PositionV1#
     set vertexdata uv 2, 0, PositionU2#, PositionV2#
     set vertexdata uv 3, 0, PositionU1#, PositionV1#
     set vertexdata uv 4, 0, PositionU1#, PositionV2#
     set vertexdata uv 5, 0, PositionU2#, PositionV2#

     PositionU1# = 0.0
     PositionV1# = 0.0
     PositionU2# = 5.0
     PositionV2# = 5.0

     set vertexdata uv 0, 1, PositionU2#, PositionV1#
     set vertexdata uv 1, 1, PositionU1#, PositionV1#
     set vertexdata uv 2, 1, PositionU2#, PositionV2#
     set vertexdata uv 3, 1, PositionU1#, PositionV1#
     set vertexdata uv 4, 1, PositionU1#, PositionV2#
     set vertexdata uv 5, 1, PositionU2#, PositionV2#
unlock vertexdata

` Load the textures.
load image "Sand.png",  1, 0
load image "LightMap.png", 2, 0

` Apply the textures using SET BLEND MAPPING ON.
set blend mapping on 1, 0, 1, 11, 26
set blend mapping on 1, 1, 2,  3,  4

` Program loop.
do
     sync
loop

end

The two textures are blended.

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Mugen Wizardry

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Posted: 28th Aug 2011 02:51

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does this allow for saving? thats what im really after. saving the detail to the model.

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SH4773R

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Posted: 28th Aug 2011 04:15 Edited at: 28th Aug 2011 04:16

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Quote: "does this allow for saving? thats what im really after. saving the detail to the model."

you cannot save a shader to a model, you save it as a .fx file then apply it to the model at runtime

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baxslash

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Posted: 28th Aug 2011 15:23

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Mugen you really won't be able to save two seperate texture levels no matter how they are blended in your program as ".X" files only have one texture level as I explained in the other thread...

I would look at different model types (IE. "3DS") and see if they allow more than one texture level to be saved. Then (if they do) you may need to look into learning how to write this information out. I still stand by my previous advice for the best way to approach this problem.

As SH4773R suggested shaders are 'run-time' effects only that will not be saved to the model. Graphical effects like this are calculated and displayed by the graphics card and have nothing to do with the model itself.

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Mugen Wizardry

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Posted: 28th Aug 2011 16:37

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I've seen X files with more than 1 texture -.-

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Mugen Wizardry

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Posted: 28th Aug 2011 16:44

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Once again, I prove u wrong.

template MeshTextureCoords {
 <f6f23f40-7686-11cf-8f52-0040333594a3>
 DWORD nTextureCoords;
 array Coords2d textureCoords[nTextureCoords];
}

Material PDX07_-_Default {
 0.588235;0.588235;0.588235;1.000000;;
 3.200000;
 0.000000;0.000000;0.000000;;
 0.000000;0.000000;0.000000;;

TextureFilename {
  "wood2.jpg";
 }
}

Material PDX01_-_Default {
 0.588235;0.588235;0.588235;1.000000;;
 3.200000;
 0.000000;0.000000;0.000000;;
 0.000000;0.000000;0.000000;;

TextureFilename {
  "imagesCAG1CE2F.jpg";
 }
}

Material PDX09_-_Default {
 0.588235;0.588235;0.588235;1.000000;;
 3.200000;
 0.000000;0.000000;0.000000;;
 0.000000;0.000000;0.000000;;

TextureFilename {
  "imagesCA9WU3XE.jpg";
 }
}

Material PDX08_-_Default {
 0.588235;0.588235;0.588235;1.000000;;
 3.200000;
 0.000000;0.000000;0.000000;;
 0.000000;0.000000;0.000000;;

TextureFilename {
  "Yew Wood.bmp";
 }
}

Material PDX03_-_Default {
 0.588235;0.588235;0.588235;1.000000;;
 3.200000;
 0.000000;0.000000;0.000000;;
 0.000000;0.000000;0.000000;;

TextureFilename {
  "imagesCADQU7PR.jpg";
 }
}

Material PDX04_-_Default {
 0.588000;0.588000;0.588000;1.000000;;
 3.200000;
 0.000000;0.000000;0.000000;;
 0.000000;0.000000;0.000000;;

TextureFilename {
  "imagesCAKBMGZD.jpg";
 }
}

Material PDX02_-_Default {
 0.588235;0.588235;0.588235;1.000000;;
 3.200000;
 0.000000;0.000000;0.000000;;
 0.000000;0.000000;0.000000;;

TextureFilename {
  "imagesCAWW88ZF.jpg";
 }
}

+ Code Snippet

template MeshTextureCoords {
 <f6f23f40-7686-11cf-8f52-0040333594a3>
 DWORD nTextureCoords;
 array Coords2d textureCoords[nTextureCoords];
}


Material PDX07_-_Default {
 0.588235;0.588235;0.588235;1.000000;;
 3.200000;
 0.000000;0.000000;0.000000;;
 0.000000;0.000000;0.000000;;

 TextureFilename {
  "wood2.jpg";
 }
}

Material PDX01_-_Default {
 0.588235;0.588235;0.588235;1.000000;;
 3.200000;
 0.000000;0.000000;0.000000;;
 0.000000;0.000000;0.000000;;

 TextureFilename {
  "imagesCAG1CE2F.jpg";
 }
}

Material PDX09_-_Default {
 0.588235;0.588235;0.588235;1.000000;;
 3.200000;
 0.000000;0.000000;0.000000;;
 0.000000;0.000000;0.000000;;

 TextureFilename {
  "imagesCA9WU3XE.jpg";
 }
}

Material PDX08_-_Default {
 0.588235;0.588235;0.588235;1.000000;;
 3.200000;
 0.000000;0.000000;0.000000;;
 0.000000;0.000000;0.000000;;

 TextureFilename {
  "Yew Wood.bmp";
 }
}

Material PDX03_-_Default {
 0.588235;0.588235;0.588235;1.000000;;
 3.200000;
 0.000000;0.000000;0.000000;;
 0.000000;0.000000;0.000000;;

 TextureFilename {
  "imagesCADQU7PR.jpg";
 }
}

Material PDX04_-_Default {
 0.588000;0.588000;0.588000;1.000000;;
 3.200000;
 0.000000;0.000000;0.000000;;
 0.000000;0.000000;0.000000;;

 TextureFilename {
  "imagesCAKBMGZD.jpg";
 }
}

Material PDX02_-_Default {
 0.588235;0.588235;0.588235;1.000000;;
 3.200000;
 0.000000;0.000000;0.000000;;
 0.000000;0.000000;0.000000;;

 TextureFilename {
  "imagesCAWW88ZF.jpg";
 }
}

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IanM

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Posted: 28th Aug 2011 16:50

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DBPro can load .x files with multiple textures (as per Truespace 7.6), but can't save them - If you want multiple textures, then you use .dbo files. Doing it this way would also save out most (if not all) of the other settings you make to your terrain, excluding any effects you apply using shaders.

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Mugen Wizardry

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Posted: 28th Aug 2011 16:55

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ok. thats a start. now, what program can i use to translate the DBO file into a multi-textured X file or 3DS file? Right now, I'll use ANYTHING

Thanks, Ian

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baxslash

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Posted: 28th Aug 2011 20:04

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Quote: "Once again, I prove u wrong."

I'm sorry, are those textures being applied to the same part of the mesh on different texture stages or to different parts of the mesh/model?

I didn't say you couldn't save multiple textures just not multiple texture "levels"...

If you have proven me wrong on that then I have just learned something. Hard to tell looking at that code you posted as I don't understand ".X" file code, I'm just going on what I read on the Microsoft website in an effort to help you.

Any chance you could try being nice to me after all this time instead of using phrases that sound like "In your face!"?

IanM, it might help save some time if you understand that what Mugen is trying to achieve is a saved terrain with the texture and detail map pre-'blended'. In other words with multiple texture layers already 'preset' into the model so it will load fully textured and detail mapped. Correct me if I'm wrong MW?

I didn't think that was possible but I'll be happy to be proved wrong as it will help Mugen achieve his goal

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Mugen Wizardry

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Posted: 28th Aug 2011 20:30

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You're correct. I'm sorry.

Now that that's out of the way. Is there ANY way to use Jane Doe's code, to SAVE multiple layered textures to a model?

Right now, I'm willing to try anything

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IanM

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Posted: 28th Aug 2011 22:04

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With that explanation of what is wanted, no.

While the .x format can be expanded to contain almost any detail you want, the program you are loading it with must be able understand the data you provide, or it will ignore it.

The problem is that the format of .x exported by the majority of exporters contain only a single texture layer per mesh, and even when they do export multiple textures per mesh, they don't specify texture blending information.

Basically, if you want to save any information other than mesh or texture data, you must do it yourself (because DBPro doesn't do this for you), and the program receiving it must understand the new data being passed to it.

That all said, how about looking at it from a different direction - rather than save your mesh with all the different textures, why not create a single pre-blended texture and use that instead.

- Create a plain with the same number of texture levels as your terrain.
- Texture the plain with the appropriate textures and blend them together.
- Render that plain to another image.
- Apply the image to your mesh.
- Save your mesh.

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Mugen Wizardry

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Posted: 28th Aug 2011 22:13

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how do you render a plain to an image?

if i saw how to do it, i may be able to manipulate that, and get what i need

Thanks, Ian!

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baxslash

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Posted: 28th Aug 2011 22:47

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Or you could do what I already suggested in the other thread and create a 'super-texture' in a paint program such as GIMP which contains the terrain texture and the 'detail' map combined (then apply that to the terrain, then save the mesh... you would achieve the same end effect as IanM's suggestion).

You might be less limited for the maximum size of your new texture that way, my own PC has a maximum render size of 4096x4096 pixels I think. Your super-texture could be twice that (or more I guess) if you wanted.

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Mugen Wizardry

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Posted: 28th Aug 2011 23:27

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how would i do this in my copy of photoshop cs4?

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baxslash

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Posted: 28th Aug 2011 23:36

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Not used cs4 but you'll need to use transparent layers.

1-Open the texture image
2-Add new layer
3-Paste detail map into new layer
4-Set transparency of detail map (and/or erase areas out)
5-Save new image

...something like that.

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Mugen Wizardry

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Posted: 28th Aug 2011 23:40

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thanks!

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